Wiping method and lasting machine-shoe assembly combination used therewith

ABSTRACT

The wiping of the heel portion of an upper margin against the corresponding portion of an insole by supporting bottom-up on a support a last having prongs extending upwardly from its bottom with the upper mounted on the last and the insole loosely located on its bottom, then raising the support so as to bring the insole into engagement with a hold down to thereby clamp the shoe assembly formed by the last, upper and insole between the support and the hold down at a level suitable for heel wiping and to thereby cause the hold down to press the insole against the prongs so as to restrain the insole against movement on the last bottom, and then wiping the heel portion of the upper margin against the insole.

i United States Patent WIPING METHOD AND LASTING MACHINE-SHOE ASSEMBLYCOMBINATION USED THEREWITII [75] Inventor: Victor E. Santilli,Framingham,

Mass.

[73] Assignee: International Shoe Machine Corporation, Nashua, NH.

[22] Filed: Jan. 9, 1975 [21] Appl. No.: 539,902

[52] US. Cl. 12/145; 12/14.2; 12/128 D [51] Int. Cl. A43D 21/00; A43D3/00 [58] Field of Search 12/145, 14.2, 128 D [56] References CitedUNITED STATES PATENTS 2,656,552 10/1953 Butler et a1. 12/14.2 2,686,9238/1954 MacDonald l2/l4.2 3,144,669 8/1964 Lamy 12/128 D I I z :r i

[ Nov. 11, 1975 3,187,358 6/1965 Roske 12/128 D PrimaryE.\'aminerPatrick D. Lawson Attorney, Agent, or FirmAlbert Gordon [57]ABSTRACT The wiping of the heel portion of an upper margin against thecorresponding portion of an insole by supporting bottom-up on a supporta last having prongs extending upwardly from its bottom with the uppermounted on the last and the insole loosely located on its bottom, thenraising the support so as to bring the insole into engagement with ahold down to thereby clamp the shoe assembly formed by the last, upperand insole between the support and the hold down at a level suitable forheel wiping and to thereby cause the hold down to press the insoleagainst the prongs so as to restrain the insole against movement on thelast bottom, and then wiping the heel portion of the upper marginagainst the insole.

4 Claims, 11 Drawing Figures U.S. Patent Nov. 11 1975 Sheet10f53,918,115

US. Patent Nov.l1, 1975 Sheet20f5 3,918,115

US. Patent N0'v.11, 1975 Sheet3of5 3,918,115

FIG 6 US. Patent Nov. 11, 1975 Sheet 4 of5 3,918,115

US. Patent Nov. 11', 1975 Sheet 5 of5 3,918,115

FIG 74 WIPING METHOD AND LASTING MACHINE-SHOE ASSEMBLY COMBINATION USEDTHEREWITH BACKGROUND OF THE INVENTION In lasting operations by machinessuch as that disclosed in U.S.. Pat. Nos. 3,320,626 and 3,631,554, it isthe practice to provide a shoe assembly formed ofa last having an uppermounted thereon and an insole accurately and immovably located on thelast bottom, usually by tacks. The shoe assembly is mounted bottom-up ona support that is movable heightwise in a particular direction and ahold down of the machine is located above the shoe assembly. The machineincorporates wiping means that are mounted for inward planar movement ina wiping stroke with respect to the shoe assembly in a particular planethat is substantially at right angles to said particular direction froma retracted position to an advanced position, the bottom surface of thewiping means lying in a wiping plane that is substantially parallel tosaid particular plane.

In the operation of these machines, the wiping means wipes a selectedportion (disclosed as the heel portion) of the margin of the upperagainst the corresponding portion of the insole. Initially the supportand the hold down are so retained that the hold down bottom and theinsole are spaced from each other with said insole substantially lyingin a plane that is parallel to and offset from the wiping plane. Thensuch relative heightwise movement is imparted in said particulardirection between the hold down and the support as to cause the holddown to engage the insole to thereby clamp the shoe assembly between thesupport and the hold down and to bring said insole portion substantiallyinto said wiping plane. After this, a wiping stroke is imparted to thewiping means to thereby cause the wiping means to wipe said marginportion against said insole portion.

In order to avoid the expense of tacking the insoles to the last bottomsand then removing the tacks and to avoid the damage to the last bottomscaused by the tacks, there has been provided lasts having prongsupstanding from their bottoms onto which the insoles are impaled bypressure applying mechanisms. Examples of such an arrangement areillustrated in U.S. Pat. Nos. 3,744,074, 3,772,721 and 3,833,958.

SUMMARY OF THE INVENTION In accordance with this invention, a lasthaving at least one prong upstanding from its bottom may be utilized inmachines of the type shown in U.S. Pat. Nos. 3,320,626 and 3,631,554 tothus avoid tacking the insole to the last bottom and then removing thetacks without using a separate pressure applying mechanism to impale theinsole on the last bottom. This is accomplished byso supporting the shoeassembly on the support that the prong is in registry with the hold downalong said particular direction. Therefore, the relative heightwisemovement between the hold down and the support that enables the shoeassembly to be clamped between the hold down and the support also causesthe hold down to engage the insole and press the insole against theprong to thereby restrain the insole against movement on the lastbottom.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. I is an isometric view of a lasthaving prongs projecting from'its bottom;

FIG. 2 is a section taken along the line 2-2 of FIG.

FIG. 3 is a view taken along the line 33 .of FIG. 2;

FIG. 4 is a view of the last supported on a support, the last havinganupper mounted thereon;

FIG. 4A is a view taken along the line 4A4A of FIG. 4; 7

FIG. 5 is a view similar to FIG. 4, but showing an insole on the lastbottom and a toe hold down bearing against the toe portion of theinsole;

FIG. 5A is a view taken along the line 5A-5A of FIG. 5;

FIG. 6 is a partially sectional elevation of an applicator-hold downunit;

FIG. 7 is a view of a shoe assembly in the machine 3 showing the holddown pressing the insole against the prongs;

FIG. 7A is a view taken along the line 7A7A of FIG. 7; and

FIG. 7B is a section taken along the line 78-78 of FIG. 7.

DESCRIPTION OF THE PREFERRED EMBODIMENT FIG. 1 shows a last 10 having aplug 12 embedded in the heel seat portion of its bottom 14 along itslongitudinal center line. The bottom of the plug 12 is mountedsubstantially coextensive with the bottom of the surrounding area of thelast bottom 14. Referring to FIGS. 2 and 3, a pair of spaced prongs 16extend away from bottom of the plug 12 and the last bottom 14. Theprongs 16 are substantially rectangular in cross-section and extendalong parallel longitudinal axes that are substantially parallel to thelongitudinal center line of the last 10. The last 10 serves as part ofwork that is acted on by a heel lasting machine of the general typeshown in U.S. Pat. No. 3,320,626 which is modified as set forth below.Reference ismade to this patent and to other patents set forth below fora disclosure of the mechanisms for operating the machine parts.

The machine includes a work support which has been modified to take theform shown in U.S. Pat. No. 3,484,880. Referring to FIG. 4, a plate 20and a last pin 22 are mounted to the top of a column 18 with the lastpin 22 extending upwardly of the plate 20. A toe rest 24 is locatedforwardly of the column 18. An upper 26 is so mounted on the last 10that the margin of the upper extends away from the last bottom 14. Thelastupper assembly is placed bottom-up in the plate 20 with the last pin22 entering the conventional last pin hole in the last. The toe portionof the last-upper assembly is supported on the toe rest 24. The plate 20and the toe rest 24 thus serve as the work support.

Referring to FIGS. 4 and 4A, the forepart portions of the upper marginare now inserted between the jaws of pincers 28 and the pincers jaws arecaused to close and grip the forepart portions of the upper margin. Thisis followed, by means of mechanism shown in U.S. Pat. No. 3,484,880, bya concomitant forward and upward movement of the pincers 28 to cause theupper 26 to be stretched .tightly about the last 10 with the quarter ofthe upper extending tightly about the heel of the last and the uppermargin extending upwardly of the last bottom. The upper margin thusforms a fence extending upwardly of the periphery of the heel portion ofthe last 10.

Referring to FIGS. 5 and 5A, the operator now places an insole 30 on thelast bottom 14, the fence formed by the quarter of the upper extendingupwardly of the last bottom acting as a guide in placing the insoleevenly on the last bottom. At this time the heel portion of the insole30 is bowed about the prongs l6 asindicated in FIG. 5. After this, bymechanism shown in U.S. Pat. No. 3,484,880. a toe hold down 32 isbrought to bear against the toe portion of the insole 30 to thereby holdthe shoe assembly comprised of the last 10, the upper 26 and the insole30 between the toe hold down 32 and the toe rest 24 and thus enable theoperator to stop holding the shoe assembly. The bearing of the toe holddown 32 against the insole 30 inhibits the shifting of the insole on thelast bottom 14.

The machine of U.S. Pat. No. 3,320,626 has been modified so as tosubstitute the heel down, heel hold down, mechanism and heel wipingmechanism shown in U.S. Pat. No. 3,609,785 for the heel hold-down heelclamping mechanism and heel wiping mechanism shown in U.S. Pat. No.3,320,626.

In addition, the instant machine incorporates a cement applyingmechanism of the type shown in U.S. Pat. No. 3,609,785.

Referring to FIG. 6, which illustrates the heel holddown and the cementapplying mechanism, the heel hold down 36 is secured to the bottom of aspindle 34. The cement applying mechanism includes a hub 38 that isrotatably mounted to the spindle 34 and that has a radially extendingnozzle 40 in its bottom. The mechanism shown in FIG. 6 forms anapplicator-hold down unit 42.

The heel clamping mechanism comprises a U-shaped heel clamping pad 44and the heel wiping mechanism comprises heel wipers 46 which are mountedfor forward-rearward planar movement and for inwardoutward planarmovement about a vertex 48 in a particular plane.

Although the plane in which the wipers 46 lie and in which they move isinclined from the vertical, for ease of explanation they will beconsidered to be horizontal. The lonitudinal axis of the column 18 is atright angles to the plane in which the wipers 46 lie and in which theymove. For ease of explanation, this axis will be considered to bevertical.

In the manner shown in US. Pat. No. 3,484,880, the applicator-hold downunit 42 is moved from an initial rearward position to a forward positionsuch that the hold down 36 is positioned directly above the heel portionof the insole 30 in vertical registry with the prongs 16 and the bottomof the hold down 36 is slightly below the wiping plane formed by thebottom surfaces of the heel wipers 46. This is followed by the verticalraising of the work support, comprised of the plate and the toe rest 24,and of the toe hold-down 32 under the yieldable force of an air operatedmotor to thereby raise the shoe assembly until the insole heel seatportion is brought into engagement with the bottom of the heel down 36.This engagement causes the hold down to press the insole 30 against theprongs 16 and the last bottom 14, as indicated in FIG. 7B, so as tocause the prongs to partially penetrate the insole. As a result, theshoe assembly is clamped between the plate 20 and the heel down 36 andthe heel seat portion of the insole is restrained against movement bythe prongs 16. The parallel longitudinal axes of the prongs 16 extend inforward-rearward directions at this time to thereby in Now, with themechanism shown in U.S. Pat. No.

3,463,779, the heel clamping pad 44 is caused to firmly engage the shoeassembly, and clamp the heel portion 1 of the upper 26 against the last10, as shown in FIGS. 7 and 7A, with the heel portion of the uppermargin extending upwardly of the heel seat portion of the insole 30.This is followed by a swinging of the hub38, while cement is extrudedthrough the nozzle 40, to thereby deposit cement on the margin of theheel portion of the upper 26 and/or the periphery of the heel portion ofthe insole 30 (see FIG. 7A). After this, the heel wipers 46 are movedforwardly from their FIGS. 7 and 7A position and inwardly about thevertex 48 in a heel wiping stroke so as to wipe the heel portion of theupper margin against the heel portion of the insole periphery and i 1bond the upper margin to the insole by means of the ce--v ment. Duringthe heel wiping operation, the applicatorhold down unit 42 is raised outof the way of the heel wipers 46, and, at the end of the heel wipingstroke, the air operated motor associated with the work support movesthe column 1 8 upwardly under heavier pressure than had previously beenapplied to thereby apply bed-,

ding pressure between the wiped upper margin and the bottoms of the heelwipers 46. After the bedding pressure has been applied for apredetermined length of time, the machine cycle is completed, themachine parts are returned to their idle positions, and the shoeassembly is released.

The insole 30 is securely anchored to the rest of=the shoe assembly atthe completion of the heel lasting operation by means of thecementatious connection between the wiped heel portion of the uppermargin and the insole.

There follows a recapitulation of the machine con-,

struction and operation as they relate to this invention.

The machine includes a support formed of the plate 20 and the toe rest24 that is mounted for heightwise movement in a particular direction inthe manner shown in U.S., Pat. No. 3,320,626. The shoe assembly, formedof the last 10 having the upper 26 mounted thereon and the insole 30located on its bottom witha particular portion (the heel portion) of theupper mar.-

gin extending upwardly of the corresponding portion of the insole, issupported bottom-up on the support. Wiping means constituted by the heelwipers 46 are I mounted for inward planar movement in a wiping strokewith respect to the shoe assembly, in the manner shown in U.S. Pat. No.3,609,785, in a particular plane I that is substantially at right anglesto said particular direction from a retracted position to an advancedposition with the bottom surface of the, wiping means lying in a wipingplane, as shown in FIG. 7, that is ,substantially parallel to saidparticular plane. The hold down 36 is located above the shoe assembly.At lease one prong 16 is mounted to the last 10 so as to extend upwardlyof the last bottom 14 beneath the insole 30,38

shown in FIG. 5, the prong being in registry with the hold down alongsaid particular direction.

In a machine cycle, the retaining means disclosed in US. Pat. No.3,320,626 initially so retain the support and the hold down that thebottom of the hold down and the insole are spaced from each other withsaid insole portion substantially lying in a plane that is parallel toand offset in said particular direction from said wiping plane. In theillustrative embodiment of the invention, the retaining means retainsthe hold down bottom substantially in said wiping plane. Thereafter, themoving means disclosed in US. Pat. No. 3,320,626 imparts such relativeheightwise movement between the support and the hold down in saidparticular direction (a rising movement of the support in theillustrative embodiment of the invention) as to cause the hold down 36to engage the insole 30 and press the insole against the prong 16 tothereby restrain the insole against movement on the last bottom 14 andclamp the shoe assembly between the support and the hold down and tobring said insole portion (disclosed as the heel portion) substantiallyinto said wiping plane. Thereafter, by the mechanism shown in US. Pat.No. 3,609,785, a wiping stroke is imparted to the wiping means tothereby wipe said margin portion against said insole portion.

Although the illustrative embodiment of the invention discloses a heelwiping operation, the invention has utility in wiping other portions ofthe shoe assembly as, for example, in wiping the toe portion of theupper margin againstv the corresponding portion of the insole.

I claim:

1. A lasting machine-shoe assembly combination for use in wiping aselected portion of the margin of an upper against the correspondingportion of an insole comprising: a support mounted for heightwisemovement in a particular direction; a shoe assembly, formed ofa lasthaving the upper mounted thereon and the insole located on its bottomwith said upper margin portion extending upwardly of the periphery ofsaid insole portion, supported bottom up on said support; wiping meansmounted for inward planar movement in a wiping stroke with respect tothe shoe assembly in a particular plane that is substantially at rightangles to said particular direction from a retracted position to anadvanced position, the bottom surface of the wiping means lying in awiping plane that is substantially parallel to said particular plane; ahold down located above the shoe assembly; at least one prong mounted tosaid last and extending upwardly of the last bottom beneath the insole,said prong being in registry with said hold down along said particulardirection; retaining means initially so retaining the support and thehold down that the hold-down bottom and the insole are spaced from eachother with said insole portion substantially lying in a plane that isparallel to and offset in said particular direction from said wipingplane; moving means for thereafter imparting such relative heightwisemovement between the support and the hold down in said particulardirection as to cause the hold down to engage the insole and press theinsole against the prong to thereby restrain the insole against movementon the last bottom and clamp the shoe assembly between the support andthe hold down and to bring said insole portion substantially into saidwiping plane; and means for thereafter imparting said wiping stroke tosaid wiping means to thereby wipe said margin portion against saidinsole portion.

2. The combination of claim 1 wherein said retaining means retains thehold down bottom substantially in said wiping plane; and wherein saidmoving means so raises the support as to bring the insole intoengagement with the hold down bottom.

3. A method of wiping a selected portion of the margin of an upperagainst the corresponding portion of an insole comprising: providing asupport mounted for heightwise movement in a particular direction;supporting bottom-up on the support a shoe assembly formed of a lasthaving the upper mounted thereon and the insole located on its bottomwith said upper margin portion extending upwardly of the periphery ofsaid insole portion; providing wiping means mounted for inward planarmovement in a wiping stroke with respect to the shoe assembly in aparticular plane that is substantially at right angles to saidparticular direction from a retracted position to an advanced position.the bottom surface of the wiping means lying in a wiping plane that issubstantially parallel to said particular plane; providing a hold downthat is located above the shoe assembly; providing at least one prongthat is mounted to said last and extends upwardly of the last bottombeneath the insole, said prong being in registry with said hold downalong said particular direction; initially so retaining the support andthe hold down that the hold down bottom and the insole are spaced fromeach other with said insole portion substantially lying in a plane thatis parallel to and offset in said particular direction from said wipingplane; thereafter imparting such relative heightwise movement betweenthe support and the hold down in said particular direction as to causethe hold down to engage the insole and press the insole against theprong to thereby restrain the insole against movement on the last bottomand clamp the shoe assembly between the support and the hold down and tobring said insole portion substantially into said wiping plane; andthereafter imparting said wiping stroke to said wiping means to therebywipe said margin portion against said insole portion.

4. The method of claim 3 wherein the hold down bottom is initiallyretained substantially in said wiping plane; and wherein said relativeheightwise movement so raises the support as to bring the insole intoengagement with the hold down bottom.

UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No.3.918.115 Dated Nov. 11, 1975 Inventor(s) Vivi-n1" E- Santilli It iscertified that error appears in the above-identified 'patent and thatsaid Letters Patent are hereby corrected as shown below:

Column 3, lines 17-19 should read: modified so as to substitute the heelhold down, heel clamping mechanism and heel wiping mechanism shown inU.S. Patent No.

3,609,785 for the heel hold down, heel This certificate supersedesCertificate of Correction issued March 2, 1976.

Signed and Scaled this Twenty-fourth Day of January 1978 [SEAL] A nest:

RUTH C. MASON LUTRELLE F. PARKER Arresting Officer Acting Commissionerof Patents and Trademarks UNITED STATES PATENT OFFICE CERTIFICATE OFCORRECTION PATENT NO. 1 3918115 DATED November 11, 1975 INVENTOR) IV'ICtOY It is certified that error appears in the above-identifiedpatent and that said Letters Patent 3 are hereby corrected as shownbelow:

Co1umn 3: 1ine 18, before the first occurrence of "mechanism" insert=--hee1 c1amping--; 1ine 19, change between ho1d" and "down" to Co1umn4: 1ine 6, change "inso1ve" to --inso1e--; 1ine 12, change "3463779" to-3436779-. 0

Signed and Scaled this second Day of March 1976 G [SEAL] Attest:

RUTH c. MASON c. MARSHALL DANN Arresting Officer Commissioner ofParentsand Trademarks

1. A lasting machine-shoe assembly combination for use in wiping a selected portion of the margin of an upper against the corresponding portion of an insole comprising: a support mounted for heightwise movement in a particular direction; a shoe assembly, formed of a last having the upper mounted thereon and the insole located on its bottom with said upper margin portion extending upwardly of the periphery of said insole portion, supported bottom-up on said support; wiping means mounted for inward planar movement in a wiping stroke with respect to the shoe assembly in a particular plane that is substantially at right angles to said particular direction from a retracted position to an advanced position, the bottom surface of the wiping means lying in a wiping plane that is substantially parallel to said particular plane; a hold down located above the shoe assembly; at least one prong mounted to said last and extending upwardly of the last bottom beneath the insole, said prong being in registry with said hold-down along said particular direction; retaining means initially so retaining the support and the hold down that the hold-down bottom and the insole are spaced from each other with said insole portion substantially lying in a plane that is parallel to and offset in said particular direction from said wiping plane; moving means for thereafter imparting such relative heightwise movement between the support and the hold down in said particular direction as to cause the hold down to engage the insole and press the insole against the prong to thereby restrain the insole against movement on the last bottom and clamp the shoe assembly between the support and the hold down and to bring said insole portion substantially into said wiping plane; and means for thereafter imparting said wiping stroke to said wiping means to thereby wipe said margin portion against said insole portion.
 2. The combination of claim 1 wherein said retaining means retains the hold down bottom substantially in said wiping plane; and wherein said moving means so raises the support as to bring the insole into engagement with the hold down bottom.
 3. A method of wiping a selected portion of the margin of an upper against the corresponding portion of an insole comprising: providing a support mounted for heightwise movement in a particular direction; supporting bottom-up on the support a shoe assembly formed of a last having the upper mounted thereon and the insole located on its bottom with said upper margin portion extending upwardly of the periphery of said insole portion; providing wiping means mounted for inward planar movement in a wiping stroke with respect to the shoe assembly in a particular plane that is substantially at right angles to said particular direction from a retracted position to an advanced position, the bottom surface of the wiping means lying in a wiping plane that is substantially parallel to said particular plane; providing a hold down that is located above the shoe assembly; providing at least one prong that is mounted to said last and extends upwardly of the last bottom beneath the insole, said prong being in registry with said hold down along said particular direction; initially so retaining the support and the hold down that the hold down bottom and the insole are spaced from each other with said insole portion substantially lying in a plane that is parallel to and offset in said particular direction from said wiping plane; thereafter imparting such relative heightwise movement between the support and the hold down in said particular direction as to cause the hold down to engage the insole and press the insole against the prong to thereby restrain the insole against movement on the last bottom and clamp the shoe assembly between the support and the hold down and to bring said insole portion substantially into said wiping plane; and thereafter imparting said wiping stroke to said wiping means to thereby wipe said margin portion against said insole portion.
 4. The method of claim 3 wherein the hold down bottom is initially retained substantially in said wiping plane; and wherein said relative heightwise movement so raises the support as to bring the insole into engagement with the hold down bottom. 